A distance–time graph has distance in kilometres on the vertical axis and time in minutes on the horizontal axis. A straight section passes through the values in the table.
| Time in minutes | Distance in km\mathrm{km}km |
|---|---|
| 2.0 | 0.24 |
| 6.0 | 0.84 |
What speed in m/s\mathrm{m/s}m/s is represented by this section?
0.15 m/s0.15\ \mathrm{m/s}0.15 m/s
2.5 m/s2.5\ \mathrm{m/s}2.5 m/s
2.3 m/s2.3\ \mathrm{m/s}2.3 m/s
9.0 m/s9.0\ \mathrm{m/s}9.0 m/s